public static Result <Name> Create(string firstName, string lastName, Suffix suffix)
{
if (string.IsNullOrWhiteSpace(firstName))
{
return(Result.Failure <Name>("First name should not be empty"));
}
if (string.IsNullOrWhiteSpace(lastName))
{
return(Result.Failure <Name>("Last name should not be empty"));
}
firstName = firstName.Trim();
lastName = lastName.Trim();
if (firstName.Length > 200)
{
return(Result.Failure <Name>("First name is too long"));
}
if (lastName.Length > 200)
{
return(Result.Failure <Name>("Last name is too long"));
}
return(Result.Success(new Name(firstName, lastName, suffix)));
}
public string RegisterStudent(string firstName, string lastName, long nameSuffixId, string email, long favoriteCourseId)
{
Course course = Course.FromId(favoriteCourseId);
if (course == null)
{
return("Course not found");
}
Result <Email> emailResult = Email.Create(email);
if (emailResult.IsFailure)
{
return(emailResult.Error);
}
Suffix suffix = Suffix.FromId(nameSuffixId);
Result <Name> nameResult = Name.Create(firstName, lastName, suffix);
if (nameResult.IsFailure)
{
return(nameResult.Error);
}
var student = new Student(nameResult.Value, emailResult.Value, course);
_contex.Attach(student);
_contex.SaveChanges();
return("OK");
}
private Name(string first, string last, Suffix suffix)
: this()
{
First = first;
Last = last;
Suffix = suffix;
}
public string EditPersonalInfo(long studentId, string firstName, string lastName, long nameSuffixId, string email, long favoriteCourseId)
{
Course course = Course.FromId(favoriteCourseId);
if (course == null)
{
return("Course not found");
}
var student = _studentRepo.GetById(studentId);
Result <Email> emailResult = Email.Create(email);
if (emailResult.IsFailure)
{
return(emailResult.Error);
}
Suffix suffix = Suffix.FromId(nameSuffixId);
Result <Name> nameResult = Name.Create(firstName, lastName, suffix);
if (nameResult.IsFailure)
{
return(nameResult.Error);
}
student.EditPersonalInfo(nameResult.Value, emailResult.Value, course);
_contex.SaveChanges();
return("OK");
}
